In a secret letter Obama sought help from Russia on Iran

Last month, President Obama sent a secret hand-delivered letter to Russia's President Dmitri Medvedev. It was an offer: the U.S. would back off from deploying a new missile defense system in Eastern Europe, if Moscow would help deter Iran from developing long-range weapons. Moscow has not responded to the letter, but many people see this as an effort to reset the relationship between the U.S. and Russia. New York Times reporter Peter Baker wrote a front page story on this and he joins us now.